- Mar 14 Enzo of Sardinia, illegitimate son of Emperor Frederick II von Hohenstaufen who appointed him King of Sardinia (1238-49) and poet, dies in prison
- Mar 17 Emperor Go-Saga of Japan (b. 1220)
- Apr 2 Richard, 1st Earl of Cornwall, Holy Roman Emperor (b. 1209)
- Apr 17 Zita, Italian maid and saint from Lucca, dies at about 59
- Aug 6 Stefanus V, prince of Transylvania/king of Hungary (1270-72), dies
- Nov 16 Henry III, King of England (1216-72, Provisions of Oxford), dies at 65
- Nov 19 David of Augsburg, Franciscan minister/author, dies